示例#1
0
文件: io_utils.c 项目: mok0/MolScript
/*------------------------------------------------------------*/
boolean
io_fget_ds (FILE *file, dynstring *ds)
     /*
       Read one complete line (up to, but excluding, the '\n' character).
       Return TRUE if successful.
     */
{
  int ch;

  /* pre */
  assert (file);
  assert (ds);
  assert (ds_valid_state (ds));

  ds_reset (ds);
  while ((ch = fgetc (file))) {
    if (ch == '\n') break;
    if (ch == EOF) break;
    ds_add (ds, ch);
  }

  return TRUE;
}
/*
   Add, edit, or remove a Data Source Name (DSN). This function is
   called by "Data Source Administrator" on Windows, or similar
   application on Unix.
*/
BOOL INSTAPI ConfigDSNW(HWND hWnd, WORD nRequest, LPCWSTR pszDriver,
                        LPCWSTR pszAttributes)
{
  DataSource *ds= ds_new();
  BOOL rc= TRUE;
  Driver *driver= NULL;
  SQLWCHAR *origdsn= NULL;

  if (pszAttributes && *pszAttributes)
  {
    SQLWCHAR delim= ';';

#ifdef _WIN32
    /* 
      if there's no ;, then it's most likely null-delimited

     NOTE: the double null-terminated strings are not working
     *      with UnixODBC-GUI-Qt (posted a bug ) 
    */
    if (!sqlwcharchr(pszAttributes, delim))
      delim= 0;
#endif

    if (ds_from_kvpair(ds, pszAttributes, delim))
    {
      SQLPostInstallerError(ODBC_ERROR_INVALID_KEYWORD_VALUE,
                            W_INVALID_ATTR_STR);
      rc= FALSE;
      goto exitConfigDSN;
    }
    if (ds_lookup(ds) && nRequest != ODBC_ADD_DSN)
    {
      /* ds_lookup() will already set SQLInstallerError */
      rc= FALSE;
      goto exitConfigDSN;
    }
    origdsn= sqlwchardup(ds->name, SQL_NTS);
  }

  switch (nRequest)
  {
  case ODBC_ADD_DSN:
    driver= driver_new();
    memcpy(driver->name, pszDriver,
           (sqlwcharlen(pszDriver) + 1) * sizeof(SQLWCHAR));
    if (driver_lookup(driver))
    {
      rc= FALSE;
      break;
    }
    if (hWnd)
    {
      /*
        hWnd means we will at least try to prompt, at which point
        the driver lib will be replaced by the name
      */
      ds_set_strattr(&ds->driver, driver->lib);
    }
    else
    {
      /*
        no hWnd is a likely a call from an app w/no prompting so
        we put the driver name immediately
      */
      ds_set_strattr(&ds->driver, driver->name);
    }
  case ODBC_CONFIG_DSN:
#ifdef _WIN32
    /*
      for windows, if hWnd is NULL, we try to add the dsn
      with what information was given
    */
    if (!hWnd || ShowOdbcParamsDialog(ds, hWnd, FALSE) == 1)
#else
    if (ShowOdbcParamsDialog(ds, hWnd, FALSE) == 1)
#endif
    {
      /* save datasource */
      if (ds_add(ds))
        rc= FALSE;
      /* if the name is changed, remove the old dsn */
      if (origdsn && memcmp(origdsn, ds->name,
                            (sqlwcharlen(origdsn) + 1) * sizeof(SQLWCHAR)))
        SQLRemoveDSNFromIni(origdsn);
    }
    break;
  case ODBC_REMOVE_DSN:
    if (SQLRemoveDSNFromIni(ds->name) != TRUE)
      rc= FALSE;
    break;
  }

exitConfigDSN:
  x_free(origdsn);
  ds_delete(ds);
  if (driver)
    driver_delete(driver);
  return rc;
}